Please help me! I’ve been trying to do this for so long

Answer:

2(x-5)=9

Step-by-step explanation:

x is used for "a number"

Answer:

D. The graph of y = |x| – 4 is the same as y = |x|.

Step-by-step explanation:

The graph y=|x|-4 is obtained from the graph y=|x| dy moving down 4 units the graph y=|x|  along the y-axis (see, if x=0, then for y=|x|, y=0 and for y=|x|-4, y=-4).

These two graphs have the same form.

...................................................................................................................................................

The graph of y=|x|-4 is the same as y=|x|.

Answer:

1,036.28

Step-by-step explanation:

Answer:

216,000

Step-by-step explanation:

Answer:

the ratio should be 4.754

Step-by-step explanation: ez kiddo i have the answer key

(0, -5)

Step-by-step explanation:

Since we are given the slope and a point on the line, we can use these to write the point-slope form of the equation of the line, which looks this this:

[tex]y - y_1 = m(x - x_1)[/tex]

where [tex](x_1, y_1)[/tex] is the point on the line and m is the slope. So the equation has the form

[tex]y - 4 = 3(x - 3)[/tex]

To find the y-intercept, set x = 0 to get

[tex]y - 4 = 3(0 - 3) \Rightarrow y - 4 = -9[/tex]

Solving for y, we get

[tex]y = -5[/tex]

Therefore, the coordinates of the y-intercept is (0, -5).

Answer:

959/1000

Thank me later and for asking! :))

Answer:

Step-by-step explanation:

0.959 as a fraction and percent expansion provides the details of what is the equivalent fraction and percent for decimal 0.959, and the answer with steps to understand how it is being calculated.

0.959 as a Fraction

0.959 = (?)

= (0.959/1) x (1000/1000)

= 959/1000

0.959 = 959/1000

0.959 as a fraction equals to 959/1000  

Hope this helps :)

The equation is,  [tex]\rm y = 30(1+0.50)^x[/tex]  101.25 bacteria cells after 3 hours, and 3892 bacteria cells after 12 hours  will be present,

It is given that the sample of bacteria cells in a petri dish increases by 50% every hour, a scientist starts with a sample of 30 bacteria cells.

It is required to find the equation that can be used to determine the number of cells after x hours.

It is defined as increasing an amount by a definite percentage over the span of a time, the original amount increases exponentially.

We know the Exponential Growth equation written as:

[tex]\rm y= a(1+r)^t[/tex]

Where y = total amount,

           a = starting amount

           r = the growth rate/exponential decay rate as a decimal

           t = number of growth periods.

We have a = 30

               r = 50% = 0.50

               t = x

Putting these values in the Exponential Growth equation, we get:

[tex]\rm y = 30(1+0.50)^x[/tex]  this is the equation for Exponential Growth.

If x = 3 hours, then:

[tex]\rm y = 30(1+0.50)^3 \Rightarrow 30(1.50)^3\Rightarrow 30(3.375)\Rightarrow 101.25\\[/tex]

If x = 12 hours, then:

[tex]\rm y = 30(1+0.50)^1^2 \Rightarrow 30(1.50)^1^2\Rightarrow 30(129.746)\Rightarrow 3892.39\approx 3892[/tex]

Thus, the equation that can be used to determine the number of cells after x hours is,  [tex]\rm y = 30(1+0.50)^x[/tex], that 101.25 bacteria cells will be present in the dish after 3 hours, and 3892 bacteria cells will be present after 12 hours.

Learn more about Exponential Decay here:

brainly.com/question/2193820

Answer:

1). y=30(1+.50)^x

2). 101.25

3). 3,892.39 Bacteria cells

Step-by-step explanation:

x=3

本题已由中国数学会官方解答（现有会员：3人）  

The solution is, the value of x = 3.

Logarithm, the exponent or power to which a base must be raised to yield a given number. The quotient rule says that, the logarithm of a quotient is equal to a difference & the product rule says that logarithm of product is equal to the sum of logarithm.

here, we have,

given that,

2 In e^(ln 5x) = 2 In 15

now, we have to solve it for x.

we know that,

e^(ln 5x) = 5x

using the rule of logarithm.

so, we have,

2 In (5x) = 2 In 15

now, for solving,

comparing both sides, we get,

15 = 5x

i.e. x = 15/5

or, x = 3

Hence, The solution is, the value of x = 3.

To learn more on Property of Logarithm click:

brainly.com/question/10418010

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Answer:   When an inequality shows a multiple of -4 = -8 or -16 then we know it is a parallel line and therefore could be a straight line continuation  - we see -3(1) -(5) = -8  and -3(5) -(1) = -16  therefore (1  -5) and (5  -1) are both ordered pairs

-3 (2) + 2 = -4   shows 2 and  2 are an ordered pair of system    -3 (0) -4 = -4   shows 0 and -4 is an ordered pair of the system

Step-by-step explanation:

-3x + y = - 4   when we +3x  both sides we get       y = 3x - 4    so when y intercept starts in -4 we an assume if x is positive and as x  is top heavy and not equal to 1 we have a fraction  x = (y + 4) / 3   and the only thing we hanged to find this fraction value for x was to eliminate 3 and separate x through dividing by x   to see other coordinates  see attachment for ordered pairs by seeing each coordinate on the graph

Answer:

hope this helps and u understood it

check the steps in the picture attached

Answer:

ten

Step-by-step explanation:

I hope this helps!!!!!!!!!

Answer:40

Step-by-step explanation:

[(√36-4)³]*5

[(6-4)³]*5

(2)³ * 5

= 2*2*2 = 8

8*5 = 40

Answer: B

Step-by-step explanation: Hope this helps :)

Answer:

15 bottles are left

Step-by-step explanation:

we say:

20 bottles

- 5 bottles

15 bottles

Answer:

15

Step-by-step explanation:

20 - 5 = 15

Answer:

Jajkmama

Step-by-step explanation:

Answer:

D

Hope it helps!

7:3

Step-by-step explanation:

Answer:

Intersections: (-2, -5) and (5, 2)

Hope this helps!

[tex]x^{2} +y^{2} =29[/tex] circle and [tex]y=x-3[/tex]

[tex]y^{2} =29-x^{2}[/tex]                   [tex]\left ( y \right )^{2}=\left ( x-3 \right )^{2}[/tex]

                                       [tex]y^{2}=x^{2}-6x+9[/tex]

[tex]\Rightarrow x^{2} -6x+9=29-x^{2}[/tex]  

[tex]\Rightarrow 2x^{2} -6x-20=0[/tex]         [tex]\Rightarrow 2x^{2} -3x-10=0[/tex]

[tex]x^{2} -5x+2x-10=0[/tex]       [tex]\Rightarrow x\left ( x-5 \right ) +2\left ( x-5 \right )=0[/tex]

[tex]x=5, \ x=-2[/tex]

[tex]\Rightarrow y=29-25=4\pm 2[/tex]       [tex]\Rightarrow y=29-4=25\pm 5[/tex]

The circle intersects the line at [tex]\left ( 5,2 \right )[/tex] and [tex]\left ( -2,-5 \right )[/tex].

Answer:

216 -18-18= 180 /2= 90

Step-by-step explanation:

thus is how I figured it out cause 2 aides of a rectangle are the same so it would leave the other 2 sides as equal too

Answer:

2.6

Step-by-step explanation:

Could you mark this the brainlist

Answer:

2.5 or 2 1/2 ft is the width

Step-by-step explanation:

Area of rectangle = length × width

(13 3/4 can also be written as 13.75)

(5 1/2 can also be written as 5.5)

Area = l × w

13.75 = 5.5 × w

13.75 ÷ 5.5 = w

2.5 = w

Answer:

10sec φ

Step-by-step explanation:

5 csc φ tan φ + 5 sec φ

= 5 (1/sin φ) * (sin φ/cos φ) + 5 sec φ

= 5 (1/cos φ) + 5 sec φ

= 5 sec φ + 5 sec φ

= 10 sec φ

Answer:

1 because you just move the decimal places two times to the left!

Hope this helps :D

The new equation will be [tex]y=-1.5x+75[/tex]

Since the height at 0 seconds will be 75, it means that 15 has been added to the height at each time instant.

As a result, the gradient will remain [tex]-1.5[/tex], but the y-intercept will become 75. Therefore the equation will only change at the intercept.

The new equation will be [tex]y=-1.5x+75[/tex]

Learn more about slopes and intercepts: https://brainly.com/question/1201010

Answer:

René Descartes

Step-by-step explanation:

N/A, too simple of a question.

Answer:

filósofo René Descartes.

El plano cartesiano lleva el nombre del matemático y filósofo francés René Descartes (1596-1650), quien introdujo el sistema de coordenadas para mostrar cómo se podía usar el álgebra para resolver problemas geométricos.

Answer:

130 degrees

Step-by-step explanation:

A triangles angles have to equal 180 degrees

A right angle = 90 degrees

40+90=130

180-130=50

A straight angle has to equal 180 degrees

180-50=130

130 degrees

Multiply number of cans by price per can:

4 x 11.50 = 46

They need $46

Answer:

$46

Step-by-step explanation:

Cuz im Smart